﻿<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
</head>
<body>
    <button type="button"  style="width:20%;background-color:#148be4;letter-spacing:4em;text-align:center;text-align: center;letter-spacing: 2em;text-indent: 2em;">登 录</button>
</body>
</html>
